Rotary internal-combustion engine.



'1. PAULY & H. EICHINGER. ROTARY INTERNAL COMBUSTION ENGINE.

APPLICATION FILED OCT. 14. I918- Patented' Apr. 29, 1919.

Mimi IPAULY AND HENRY EIGHINGER, 0F APPLETON, WISCONS'N.

ROTARY EXTERNAL-COMBUSTION ENGINE.

meanest.

Specification of Letters Patent.

Patented Apr. 2%, 1919.,

application filed October 1a, 191a eria1l l'o'.258,002.

To all whom it may concern:

Be it known that we; Jorm PAULY and HENRY Eromnsnn, citizens of the United States, and residents of Appleton, in the county of ()utagamie and State of Wis.

consin, have invented certain new and useful Improvements in Rotary Internal-Combustion En es;'andwe dohereby declare that the to owing is a full, clear, and exact description thereof.

Our invention relates to new and useful improvements in rotary combustion engines, more particularly of that type including a rotor member provided with peripheral pockets adapted to receive the expansive of an improved valve mechanism controllingthe passage of fluid from the compression chamber to the explosion chamber and from the explosion chamber to the rotor chamber.

With the above and other objects and advantages in view, which will be apparent as the description proceeds, our invention resides in the novel features of construction, combination and arrangement of parts as hereinafter described and defined by the appended claim.

In the accompanying drawings:

Figure 1 is a side elevational view of a rotary engine constructed in accordance with our invention, one of the side plates of the rotor casing being removed, and portions of the casing annulus and the fuel supply means being in section.

Fig. 2 is a vertical sectional view on the line 22 of Fig. 1.

Fig. 3 is a detail elevational view of the valve moving mechanism.

Referrin now more particularly to the accompanymg drawings, there is provided a rotor casing including a body annulus 16 preferably integrally merged at its lower portion into a supporting base 11. Side plates 12 are secured at their peripheral portions to the sides of the annulus 10 by means of bolts 13, and journaled in the side plates and in journal brackets lcarried thereby is a rotor shaft 15 on which is fixed the hub 16'of a rotor including the web portion 17 and a widened rim 18having its periphery 1n sliding engagement with the inner periphcry of the casing annulus. Diametrically opposed portions of the annulus rim are provided each with a series of pocket recesses 19, the forward sides of these recesses with respect to the direction of rotation of the rotor being substantially radial in direction and being slightly concaved, while the rear sides of the pockets are convex and diverge outwardly from the forward sides to meet the outer edge portions of the forward sides of succeeding recesses. To prevent leakage of gas from the pockets between the sides of the rotor and the side casing plates 12, arcuate plates 20 are mounted in cut-away portions 21 of the sides of the rims adjacent the pocket recesses, said plates thus forming the sides of the pockets and being secured to the rim by bolts 22 engaging the rim portions between the pocket recesses whereby to procure a gas tight seal.

For supplying drive gases to the rotor, a valve casing 23 is mounted on the annulus, and in the present instance comprises an integral enlargement of one upper side portion of the annulus, which also serves as a seating base for a compression cylinder 24. A duct 25 connects .the compression cylinder with the interior of the valve casing, and a duct 26 connects the rotor chamber with that portion of the interior of the valve casengine. The valve shell is provided with a port 32 adapted to aline with the port 26 of the annulus chamber, and is also provided with a port 33 adapted to aline with the compression cylinder port 26, the last named ports being out of registry when the first named ports are in registry.

A fuel supply conduit 34 communicates with the inner end of the compression cylinder 24 and is controlled by a suitable spring actuated puppet valve 35. The piston 36 has its rod 37 connected with one end of-a rocking beam 38 intermediately pivoted on a standard 39 of the annulus enlargement. The other end of the rocking beam is pivoted iii to one end of a link 40 which carries at its other end a cam ring 41 mounted on an cecentric 42 carried by the rotor shaft 15. Thus uponeach reciprocation of the rotor shaft, a charge of fuel will be compressed.

For actuating the valve shell 27 a lever 43 is interme'liately secured to one end thereof, and the lever is resiliently urged to a position wherein the valve shell is in communication with the rotor chamber, by alinement of the ports 26 and 32, through the medium of a retractile spring 44 secured to one end of th lever and secured to the valve casing. A stop 45 limits rotative movement of the lever under influence of the spring. Slidably carried on the other end of the lever is a trip dog 46 which is resiliently urged outwardly by a spring 47 and which has on end beveled for wiping engagement by the beveled end of a trip dog 48 mounted on a lever 49 intermediately pivoted on the rotor casing, the trip dog 48 being also urged outward by a spring 50. The other end of the lever 49 has a pin and slot connection 51 with the cam link 40 whichactuates the piston. Thus, it will be seen by reference particularly to Fi 3, that in downward movement of the link 40, the trip dogs will move past each other in mutual camming engagement, and in upward movement of the link, the trip dogs will engage to rock the lever 43 against the action of its spring 44, said dogs being movable past each other at the completion of such rocking movement by reason of their divergent arcuat paths of travel, and it is understood that the terms upward and downward movement are only used in view of the present illustration. This rocking movement of the lever and consequently of the valve shell to aline the ports 25 and 33 occurs immediately at the completion of the compressing movement of the piston, it being noted that during the major portion of the cycle of operation of the engine these portions are out of registry. The operation of the engine is exceedingly simple; fuel is taken into the cylinder 24 and compressed on each rotation of the rotor. .At the completion of the com pression stroke of the piston 36, the valve shell 27 is rocked by the levers 43 and 49 to dispose the ports 25 and 33 in registry, and the com ressed gases rush into the valve shell. he valve shell is then shifted to move said ports out of alinement and to aline the ports 26 and 32 as the foremost of the rotor pockets 19 moves into communication with the port 26. Explosion then occurs and thegases of explosion expand through the port 26, impacting against and filling the pockets 19 as theyv successively move past the port, to impart the rotative imthrough a port 52 in the annulus 10, which pulse of the engine. It is noted that the series of pockets is of such length as to provide for complete exhaustion of the exminimum amount of dead gas remains therein upon the entrance of a fresh charge into the shell. The pockets 19 are exhausted is preferably located at the side of the annulus opposite the charge port 26.

In the present arrangement, only one of the series of pocket recesses ofthe rotor receives the driving impulse, the other seriesshown being idle and serving as a counter balance for the rotor. Said other series may also be utilized however to receive the driving impulse by reversing the position of the cam 42 on the rotor shaft 15-, and thus should one series of the pockets 19 become clogged with carbon deposits, the other se ries may be used to delay the necessity for disassembling the rotor casing for cleansing of the rotor pockets. It will however, be appreciated that, without detracting from our invention, two impulses may be given to the piston 36 and the valve shell during one rotation of the rotor, and in that event both of the series of pocket recesses would be utilized in operation of the engine.

' We claim: I

,A rotary engine including a rotor casing, a rotor in the casing provided with a series of pockets, a valve casing adjacent-the rotor casing, a compression cylinder, a piston in said cylinder, a port connecting the compression cylinder and the valve casing, a port connecting the valve casing provided with a port adapted to register with the adapted to register with the rotor chamber port, said rotor chamber port being normally in registry with the corresponding valve port and the other ports being normally out of registry, means for operating the compression cylinder piston including a reciprocating member connected therewith and with therotor, an intermediately pivoted lever connected with the reciprocating member for rocking movement upon reciprocation of said member, a lever connected with the valve sheIL-andyieldable dogs on said levers having cam surfaces whereby said dogs move past each-other in one direction of rotative movement and engage in the other direction of rotative movement to rock the valve shell lever.

In testimony that we claim the foregoing we have hereunto set our hands at A pleton, in the county of'Outagamie and tateof 7 Wisconsin.

' JOHN PAULY.

' HENRY I nrcmnonn.

ploded gases from the valve shell whereby a compression cylinder port and with a port 

